What aspects should be considered in fingerprint locks? How to choose fingerprint locks

We all know that fingerprint locks are a common type of door locks on the market. There are many styles of fingerprint locks, and different fingerprint locks have different usage effects. They are easy to open, and the appearance of the door locks is also fashionable and beautiful, which is very popular among people. So what aspects do fingerprint locks generally focus on? Let's take a closer look!

What aspects should be considered when buying fingerprint locks

Stability of fingerprint lock

The stability of the fingerprint lock is mainly reflected in the material quality of the core components. The more stable its electronic part is and the thicker the mechanical part is, the better the stability of the fingerprint lock will be. As for how to choose the stability of the electronic part? You can look at the establishment time of the fingerprint lock brand. For companies that have been established for a certain period of time, its electronic components will definitely be more stable. If it is not stable, it must have been improved over such a long period of time, otherwise it would not have survived for so long.

When you replace the fingerprint lock, you must replace the lock body together. In order to reduce costs, some merchants and customers do not replace the lock body when installing the fingerprint lock, which causes the fingerprint lock to malfunction or inconvenience in opening the door. The lock bodies used by most developers are made of iron, and the material is thin, which is easy to rust and deform, making it difficult to use.

Fingerprint locks are semi-finished products before they are installed, just like air conditioners. Don’t underestimate the installation of fingerprint locks; the length of the square bar and the debugging need to be controlled by professionals. If you install it privately to reduce costs, there is a high probability of after-sales problems, so the installation of fingerprint locks must be done by professionals.

Security factor of fingerprint lock

Here we analyze it in two aspects: first, normal door opening method; second, abnormal door opening method.

⒈Normal opening method

Currently, the normal ways to open fingerprint locks include fingerprint, password, card, mechanical key, mobile phone temporary password, etc.

⑴ Fingerprint opening. The uniqueness of fingerprint is an absolute guarantee of security. Many friends may have seen on TV that fingerprints can be easily copied to open the door; but most of the current fingerprint heads use semiconductor fingerprint heads, which are not as easy to copy as optical fingerprint heads; to be honest, copying a person's fingerprint head requires certain technical experience and equipment, and not everyone can copy it casually, so fingerprint opening is relatively safe.

⑵ Open with password. The password setting is relatively hidden and not easy to be copied, but the password setting is not conducive to memory. Some people have a bad memory and forget easily, so the password opening is not very meaningful for fingerprint locks. At most, someone can use it temporarily to enter the door.

⑶ Card opening. The anti-theft coefficient of the card opening method is slightly lower than that of other opening methods. There is a card information receiver on the market. Once the card is carried on the body, the information on the card can be copied by someone with ulterior motives to open the door. But you can rest assured that no one in an ordinary family will commit theft. Besides, this kind of receiver is not something that anyone can buy.

⑷ Open with mechanical key. At present, the mechanical key of fingerprint lock adopts C-level blade lock for anti-theft part, and the anti-theft coefficient is the highest level among the current mechanical ones.

⑸ The temporary password of the mobile phone is enabled. The temporary password of the mobile phone is enabled, which has a certain time validity. You can shorten the time of enabling it on the mobile phone. Moreover, the temporary password needs to be set through the management password, otherwise the temporary password cannot be enabled.

Summary: If you are not confident about the Internet, you can cancel the card and temporary password opening function; this way, it is basically impossible for criminals to open the security door through the Internet.

⒉ Abnormal opening method

Currently, the abnormal ways to open the fingerprint lock mainly include Tesla coil, cat's eye opening, network receiver copying information opening, technology opening, and tool opening.

⑴ Tesla coil. Currently, 99.99% of fingerprint locks on the market cannot be opened with Tesla coils. Two years ago, a TV station reported that fingerprint locks could be opened with Tesla coils. Soon after, a provincial lock industry association issued a notice proving that the news was untrue. During that period, every smart lock manufacturer tried their fingerprint locks with Tesla coils, proving that Tesla coils could not be opened.

⑵ Opening by cat's eye. Cat's eye opening is mainly for semi-automatic fingerprint locks, because only semi-automatic fingerprint locks have horizontal handles. If the semi-automatic fingerprint lock has the function of preventing cat's eye opening, then the cat's eye opening will naturally fail; you can also choose to replace the anti-theft cat's eye or smart cat's eye.

⑶ Network receiver copies information to open. This aspect has been mentioned above. As long as the card and temporary password are not set to open, the network receiver cannot be implemented, and naturally the door cannot be opened.

⑷ Technical opening. Technical opening is generally through the cat's eye and mechanical keyhole. I will not go into details about these two aspects here, as they have been explained above.

⑸ Opening with tools. The main method of opening with tools is to use a paper-thin steel plate to clamp the handle bar at the joint between the outer panel and the door and press down to open the door. At present, most locks have been improved in this way, and the bar is basically retracted into the door leaf, so this kind of tool has no chance to be used.

After-sales issues of fingerprint lock

1. Purchase in physical store

① Choose to buy fingerprint locks from physical stores that have been open for a long time. These physical stores have good credit, many customers, and are already profitable and have a certain economic strength; they value their customers and will be responsible for the goods as long as they are shipped from them.

② Avoid going to newly opened big stores and buying unknown brands. Nowadays, many people are just pretending to be rich, but they don’t have the financial strength to open big stores. If they try their best, they may succeed. So everyone should carefully consider buying products from newly opened big stores.

⒉ Online purchase

① Never buy on Taobao. Although the price is low, the quality is not guaranteed. If there is a problem, you may have no way to complain and no one to find. If the business is not doing well, the online store will be closed at any time. There is some truth in the saying that cheap goods are not good, and good goods are not cheap.

② You can consider online stores of large enterprises. They have high deposits on Taobao and are backed by large enterprises. Generally, there will not be too many problems with after-sales service. Even if the merchant does not provide after-sales service, the management company will compensate the customer by deducting the deposit.

Summarize:

Through the above analysis, the stability of the fingerprint lock should be ranked first, followed by the anti-theft coefficient, then after-sales service, and finally the price and other aspects; because only when the product is stable can all subsequent functions be guaranteed. If the product is unstable and protects itself from outside, no matter how good the subsequent other functions are, they will be useless.

What should you pay attention to when using fingerprint lock

1. Look at the material of the fingerprint password lock. Zinc alloy is a good choice because it is corrosion-resistant, wear-resistant, and impact-resistant, and has a long service life.

2. Check whether the lock core is a super B-grade lock core. There are three levels of lock cores for household door locks: A-grade, B-grade and super B-grade. For A-grade, the pass standard is that the lock core can be opened technically for more than 1 minute; for B-grade, the pass standard is that the lock core can be opened technically for more than 5 minutes; for super B-grade, the lock core is monitored by the relevant departments and the pass standard is that the lock core cannot be opened technically or the lock core can be opened technically for more than 270 minutes. Therefore, the lock core using a super B-grade lock core is safe and reliable;

3. Check whether it is equipped with a mechanical key. If you have a spare mechanical key, you don’t have to worry about being unable to unlock the door due to disordered lock program data. You also don’t have to worry about the door lock running out of power and being unable to enter the house. The manufacturer will have a backup solution, such as using a power bank to charge the mechanical lock in an emergency, and giving a reminder to change the battery before the battery runs out of power.

Advantages and disadvantages of fingerprint lock

The advantages of fingerprint locks are more convenience and fashion. Excluding abnormal means, because fingerprints are unique and cannot be copied, there is no need to worry about keys being copied after being lost. And there is no need to worry about forgetting to bring keys or losing keys when going out. In addition, everyone is looking for novelty and fashion, after all, smart locks are the trend of the future. But there are too many hidden dangers behind the pursuit of convenience and fashion. So let's talk more about the existing problems.

1. Now many smart locks support multiple unlocking methods. In addition to fingerprint unlocking, you can also set remote unlocking, phone unlocking, SMS unlocking and other methods. But the more they support, the worse the stability and security.

2. Smart locks generally need batteries to power them, but it is often embarrassing to forget to change the batteries, and the smart locks will not respond, so when you drag your tired body back to the door, you will be locked out. Although there are mechanical locks as backup, it seems unnecessary and causes trouble.

3. There is another loophole in the smart lock. The small black box can be used to force the fingerprint lock to freeze and restart through electromagnetic interference. At this time, many fingerprint locks will be unlocked by default after restarting. This is terrifying. Wouldn’t the smart lock become a joke?